+2004-02-08 Richard Sandiford <rsandifo@redhat.com>
+
+ * real.c (encode_ibm_extended): Normalize the input value before
+ converting it to a double. Handle the case where a normal value
+ rounds to infinity.
+
2004-02-08 Kazu Hirata <kazu@cs.umass.edu>
* c-objc-common.c (): Fix a typo in a warning.
encode_ibm_extended (const struct real_format *fmt, long *buf,
const REAL_VALUE_TYPE *r)
{
- REAL_VALUE_TYPE u, v;
+ REAL_VALUE_TYPE u, normr, v;
const struct real_format *base_fmt;
base_fmt = fmt->qnan_msb_set ? &ieee_double_format : &mips_double_format;
+ /* Renormlize R before doing any arithmetic on it. */
+ normr = *r;
+ if (normr.class == rvc_normal)
+ normalize (&normr);
+
/* u = IEEE double precision portion of significand. */
- u = *r;
+ u = normr;
round_for_format (base_fmt, &u);
encode_ieee_double (base_fmt, &buf[0], &u);
- if (r->class == rvc_normal)
+ if (u.class == rvc_normal)
{
- do_add (&v, r, &u, 1);
+ do_add (&v, &normr, &u, 1);
round_for_format (base_fmt, &v);
encode_ieee_double (base_fmt, &buf[2], &v);
}
+2004-02-08 Richard Sandiford <rsandifo@redhat.com>
+
+ * gcc.c-torture/execute/20040208-[12].c: New tests.
+
2004-02-08 Eric Botcazou <ebotcazou@libertysurf.fr>
* g++.dg/eh/simd-2.C: Adjust line numbers for SPARC.
--- /dev/null
+int main ()
+{
+ long double x, y;
+
+ x = 0x1.fffffffffffff8p1022L;
+ x *= 2;
+ y = 0x1.fffffffffffff8p1023L;
+ if (memcmp (&x, &y, sizeof (x)) != 0)
+ abort ();
+ exit (0);
+}